SDO HMI 2011-08-26 20:59:08 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing)
(It is recommended to set high resolution on your display!)
| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 23.32 | 137.93 | 24.64 | 145.45 | 13.36 | 291.73 | -62.65 | 78.60 | 0.8835 | -441.7 | -126.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-26 20:59:08 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing) (It is recommended to set high resolution on your display!) |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 0.54 | 0.00 | 0.57 | 15.43 | 291.69 | -62.70 | 76.25 | 0.8838 | 365.0 | 331.7 | |
| 14.62 | 129.86 | 15.19 | 136.43 | 13.51 | 292.03 | -62.35 | 78.44 | 0.8811 | -738.1 | -141.3 | |
| 0.81 | -2.00 | 0.85 | -2.00 | 13.50 | 291.70 | -62.69 | 78.44 | 0.8838 | 83.4 | 999999 | |
| 0.00 | 2.06 | 0.00 | 2.15 | 12.51 | 291.94 | -62.45 | 79.57 | 0.8820 | -551.0 | -478.0 | |
| 2.69 | -2.00 | 2.85 | -2.00 | 13.29 | 291.45 | -62.94 | 78.67 | 0.8858 | -241.4 | 999999 | |
| 3.32 | -2.00 | 3.51 | -2.00 | 12.98 | 291.46 | -62.93 | 79.03 | 0.8858 | -431.0 | 999999 | |
| 0.00 | 2.78 | 0.00 | 3.09 | 12.73 | 290.02 | -64.37 | 79.27 | 0.8970 | 507.0 | 422.1 | |
| 1.88 | 2.69 | 2.24 | 3.21 | 12.39 | 288.08 | -66.31 | 79.57 | 0.9112 | 362.1 | 390.8 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
|
that the umbra consists of fragmented regions which cannot be separated without losing umbral area. In this way several spots (intensity minima in the umbra) have a common umbra, e.g. -2 means that the given spot shares an umbra with spot No.2, and the common U value is indicated at spot No.2. |
||
| Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
|
that several umbras have a common penumbra, e.g. -7 means that the given umbra shares a penumbra with umbra No.7, and the WS value is indicated at No.7. |
||
| Corr. U | - Corrected umbra area in millionths of solar hemisphere, for negative values see above | |
| Corr. WS | - Corrected whole spot area in millionths of solar hemisphere, for negative values see above | |
| B | - Heliographic latitude B; positive: North, negative: South | |
| L | - Heliographic longitude L | |
| LCM | - Longitudinal distance from the Sun's central meridian | |
| Pos. angle | - Position angle | |
| r | - Distance from the centre of Sun's disc in terms of Sun's radius | |
| MU | - Mean magnetic field within the umbra contour averaged the pixel values with sign. | |
| MP | - Mean magnetic field within the penumbra contour averaged the pixel values with sign. | |